The primary outcome was taken as the difference between
groups during TENS relative to baseline on visit 3 for pain intensity
(using VAS), 6-minute walk test, MVC, and ROM.
Secondary outcomes were differences between groups on visit 3
for PCS, PASS20 and HAD; and scores for WOMAC on visit 3 relative
to visit 1.
The following test statistics were applied (see Results). For comparing
pairwise differences of VAS measures, the one-sample ttest,
together with its corresponding 95% confidence interval,
was applied. Comparison of 2 groups is done with the 2-sample
t-test. Finally, the 3 groups are tested by one-way analysis of variance
(ANOVA), where additionally 95% simultaneous confidence
intervals are computed for comparing the group means.
The primary outcome was taken as the difference betweengroups during TENS relative to baseline on visit 3 for pain intensity(using VAS), 6-minute walk test, MVC, and ROM.Secondary outcomes were differences between groups on visit 3for PCS, PASS20 and HAD; and scores for WOMAC on visit 3 relativeto visit 1.The following test statistics were applied (see Results). For comparingpairwise differences of VAS measures, the one-sample ttest,together with its corresponding 95% confidence interval,was applied. Comparison of 2 groups is done with the 2-samplet-test. Finally, the 3 groups are tested by one-way analysis of variance(ANOVA), where additionally 95% simultaneous confidenceintervals are computed for comparing the group means.
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